His post further prods me toward listening to that audiobook, which I finally got a hold of last month. Unfortunately, my commuting time has been cut drastically, leaving me scant quiet time. We’ll see what happens. …this reminds me, I haven’t yet set down any words about my reaction to Murakami’s newest work. That alone should tell you something, but I’ll get to it eventually.
A hold is standard English. It is the noun hold with the article a.
Ahold does not exist as a word in standard English.
Incorrect: You’ve really got ahold on me.
Correct: You’ve really got a hold on me.